guldborgentreprise.dk

📜 Historical scan 2026-06-20 08:37:10 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

guldborgentreprise.dk is a .dk domain served by 2 nameservers (ns3.hostworld.dk, ns4.hostworld.dk). It was registered on 20 September 2017 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 217.160.220.14 is hosted by IONOS SE (AS8560) in Germany. Mail is handled by guldborgentreprise-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 94ms

Nameserver	IP addresses	PTR	ASN / ISP
ns3.hostworld.dk	217.160.222.205 2a02:247a:256:2c00:1::1	ip217.160.222.205.pbiaas.com ns3.hostworld.dk	AS8560 IONOS SE AS8560 IONOS SE
ns4.hostworld.dk	217.160.220.14 2a02:247a:256:2c00::1	ip217-160-220-14.pbiaas.com hostworld.dk	AS8560 IONOS SE AS8560 IONOS SE

🌍 A Records#

1 records 68ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
217.160.220.14	600s	ip217-160-220-14.pbiaas.com	AS8560	IONOS SE	217.160.0.0/16	🇩🇪 Germany	—

📧 MX Records#

1 records 43ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	600s	guldborgentreprise-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca04::6 2a01:111:f403:ca04::c 2a01:111:f403:ca09:: 52.101.68.18 52.101.68.27 52.101.68.36 52.101.73.19	mail-dbapr03cu00100.inbound.protection.outlook.com mail-db4pr02cu00406.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-am3pr04cu00500.inbound.protection.outlook.com mail-db4pr02cu00302.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com mail-as8pr04cu00803.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 52.98.149.184

🔷 AAAA Records (IPv6)#

1 records 69ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:247a:256:2c00::1	600s	hostworld.dk	AS8560	IONOS SE	2a02:2478:0:0:0:0:0:0/29	🇩🇪 Germany	—

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 259ms

TXT Record
MS=ms69480453
v=spf1 +a +mx +ip4:217.160.220.14 +ip4:139.177.183.24 +include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (guldborgentreprise.dk)
-all (hard fail)	v=spf1 +a +mx +ip4:217.160.220.14 +ip4:139.177.183.24 +include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.guldborgentreprise.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-01 09:24:29

www CNAME	guldborgentreprise.dk (all on guldborgentreprise.dk)
Wildcard	No

✍️ DKIM keys#

1 found

Selector	CNAME	Key
default	—	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.guldborgentreprise.dk	F4LIuXC_HxFJ7GV25eDqM7wKs6bgbkfAatBtsvBPKNs

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

86ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

60ms

Field	Value
Serial	2026052501
Primary NS (MNAME)	ns3.hostworld.dk
Responsible (RNAME)	service@lignum.dk
Refresh	3600s
Retry	1800s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration#

WHOIS fetched 2026-10-02 12:07:35

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2017-09-20
Expires	2026-09-30 (expired)

📋 WHOIS#

⏱️ Lookup Timing#

94ms

68ms

43ms

AAAA

69ms

TXT

259ms

CAA

55ms

HTTPS

43ms

TLSA

228ms

SOA

60ms

MTA-STS

90ms

DNSSEC

86ms

SRV

85ms

Total

832ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-26 14:39:40	207ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-25 08:57:38	330ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-23 20:00:41	218ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-22 12:47:44	105ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-21 12:04:51	205ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-20 07:59:41	208ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-19 06:49:05	321ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-18 06:08:33	237ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-17 05:22:51	209ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-16 04:44:59	279ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-15 03:19:18	227ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-14 00:28:19	421ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-12 22:21:17	110ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-11 21:38:19	229ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-10 20:41:09	137ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-09 18:42:14	401ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-08 12:48:29	235ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-07 12:41:18	209ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-06 11:33:32	668ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-05 09:58:49	538ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-04 09:41:25	155ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-03 09:40:05	469ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-02 09:34:14	654ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-01 09:24:29	919ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-24 19:47:27	1418ms	2 NS 1 A 1 MX	🔓 Insecure